feat: Refactor S3 last modified endpoint and Dashboard data fetching to handle errors gracefully

backend/server.js

@@ -436,22 +436,42 @@ app.post('/api/filters', async (req, res) => {
 // Новый эндпоинт для получения дат последнего изменения файлов S3
 app.get('/api/s3/last-modified', async (req, res) => {
     try {
-        const [domainsHead, domainsNewHead, asnsHead, serversHead, filtersHead] = await Promise.all([
+        const results = await Promise.allSettled([
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'bgp_data/domains.txt' }).promise(),
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'bgp_data/domains_community.txt' }).promise(),
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'bgp_data/asns.txt' }).promise(),
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'servers.json' }).promise(),
             s3.headObject({ Bucket: BUCKET_NAME, Key: 'filters.json' }).promise()
         ]);
-        res.json({
-            domainsLastModified: domainsHead.LastModified ? domainsHead.LastModified.toISOString() : null,
-            domainsNewLastModified: domainsNewHead.LastModified ? domainsNewHead.LastModified.toISOString() : null,
-            asnsLastModified: asnsHead.LastModified ? asnsHead.LastModified.toISOString() : null,
-            serversLastModified: serversHead.LastModified ? serversHead.LastModified.toISOString() : null,
-            filtersLastModified: filtersHead.LastModified ? filtersHead.LastModified.toISOString() : null
-        });
+
+        const response = {
+            domainsLastModified: null,
+            domainsNewLastModified: null,
+            asnsLastModified: null,
+            serversLastModified: null,
+            filtersLastModified: null
+        };
+
+        // Обрабатываем результаты
+        if (results[0].status === 'fulfilled') {
+            response.domainsLastModified = results[0].value.LastModified ? results[0].value.LastModified.toISOString() : null;
+        }
+        if (results[1].status === 'fulfilled') {
+            response.domainsNewLastModified = results[1].value.LastModified ? results[1].value.LastModified.toISOString() : null;
+        }
+        if (results[2].status === 'fulfilled') {
+            response.asnsLastModified = results[2].value.LastModified ? results[2].value.LastModified.toISOString() : null;
+        }
+        if (results[3].status === 'fulfilled') {
+            response.serversLastModified = results[3].value.LastModified ? results[3].value.LastModified.toISOString() : null;
+        }
+        if (results[4].status === 'fulfilled') {
+            response.filtersLastModified = results[4].value.LastModified ? results[4].value.LastModified.toISOString() : null;
+        }
+
+        res.json(response);
     } catch (error) {
-        console.error(error);
+        console.error('Error fetching last modified dates from S3:', error);
         res.status(500).send('Error fetching last modified dates from S3');
     }
 });